Yukon Vengeance

After three Canadian mail carriers are attacked and killed by a bear and robbed of a lumber company payroll, Royal Canadian Mountie Rod Webb is assigned to pose as a mail carrier and investigate the deaths. Accompanied by his dog Chinook, Rod journeys by canoe to the settlement at Bear Creek, Quebec, but as he docks, trapper Schmidt and his accomplice, Gray Shadow, see him and set loose a large bear. Chinook spots the bear first and attacks it as Gray Shadow fights Rod. Meanwhile, Schmidt removes the mail bag and attempts to shoot Rod but accidentally kills Gray Shadow. After Schmidt and the bear run off, lumber camp boss Jim Barclay, having been alerted that a mail carrier was coming, arrives. Barclay explains that Gray Shadow was the son of Athapaskan chief Lone Eagle, and when they reach the trading post with his body, his widow, Yellow Flower, accuses Rod of killing him. Scottish-born Fergus MacLish, manager of the trading post, states that Gray Shadow was a good Indian and doubts Rod's account of the events. Meanwhile, Schmidt opens the mailbag and conceals half of the money under the floorboards of the room where he keeps the bear, then burns the remainder of the mail. That night, Barclay shoots flaming arrows into Rod's cabin and pins him down with rifle fire before escaping. Rod is unaware of his assailant's identity, but learns that the bullets used in the attack could only have come from two rifles. MacLish's assistant, Madelon, owns one, and while searching her cabin, Rod finds some marked bills from the robberies. Later, after Schmidt shoots Rod in the shoulder and MacLish kills the bear, Rod recuperates in Madelon's cabin, and she discovers his true identity and mission. When Rod asks her about the money, she tells him that she received it from MacLish as part of her wages. Madelon also reveals that the bear may have belonged to Schmidt. When Rod goes to Schmidt's cabin, he discovers the stolen money, but is surprised by Schmidt. A long fight ensues, and ends when Schmidt falls to his death from the top of a water wheel. After MacLish learns that Rod is a Mountie, he cooperates by opening his safe and cash register, where more missing bills are discovered, and states that he must have taken them in over the counter. Meanwhile, Madelon discovers that Barclay has more of the stolen cash and accuses him of having Schmidt and Gray Shadow do the killings. Barclay ties her up and takes her to the Indian reservation, and because Barclay is a blood brother, the tribe is duty bound to conceal him. Rod and Chinook follow them, but Rod is taken prisoner and becomes separated from Chinook. Chinook manages to find Madelon and frees her, and together they race to the reservation. There, the chief is about to burn Rod alive, despite his having revealed his identity and Barclay's role in the killings. As Yellow Flower prepares to light the fire, Madelon and Chinook run up and Madelon confirms to the chief that Barclay is the guilty party. The chief then decides that the truth will be revealed through a trial by combat. Rod and Barclay fight with tomahawks and, as Barclay attempts to escape, Yellow Flower throws a knife into his back. Later with the case solved, Rod and Chinook head back to headquarters to deliver the evidence.